Microsoft Office Remote Code Execution Vulnerability
Priority CRITICAL 92Exploited in the wildPublished · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Microsoft Office Remote Code Execution Vulnerability
Why it matters now
Exploitation Active In CISA KEV since 2021-11-03CISA due date 2021-11-17
EPSS 0.06076 93rd percentileScored 2026-11-07
Fix Fixed Microsoft Office 2010 Service Pack 2 (Microsoft): 14.0.7266.5000Microsoft Office 2013 Service Pack 1 (Microsoft): publication+1 more product
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Microsoft Office 2010 Service Pack 2 | 13.0.0.0 to before 14.0.7266.5000 | 14.0.7266.5000 | Patch available | CNA |
| Microsoft | Microsoft Office 2013 Service Pack 1 | 15.0.0 to before publication | publication | Patch available | CNA |
| Microsoft | Microsoft Office 2016 | 16.0.0 to before 16.0.5134.1000 | 16.0.5134.1000 | Patch available | CNA |
- Microsoft Office 2010 Service Pack 2 VendorMicrosoft Affected 13.0.0.0 to before 14.0.7266.5000 Fixed in 14.0.7266.5000 Patch available CNA
- Microsoft Office 2013 Service Pack 1 VendorMicrosoft Affected 15.0.0 to before publication Fixed in publication Patch available CNA
- Microsoft Office 2016 VendorMicrosoft Affected 16.0.0 to before 16.0.5134.1000 Fixed in 16.0.5134.1000 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:*:* | 2010 sp2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:* | 2013 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:* | 2013 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:office_2016:-:*:*:*:-:*:x64:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:office_2016:-:*:*:*:-:*:x86:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:*:* Versions 2010 sp2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:office_2016:-:*:*:*:-:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:office_2016:-:*:*:*:-:*:x86:* Versions not specified by NVD Vulnerable ·Microsoft
Remediation
- Fix · CNA Microsoft Office 2010 Service Pack 2 (Microsoft) Fixed in 14.0.7266.5000
- Fix · CNA Microsoft Office 2013 Service Pack 1 (Microsoft) Fixed in publication
- Fix · CNA Microsoft Office 2016 (Microsoft) Fixed in 16.0.5134.1000
Timeline
- 2021-11-03 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2021-27059
- 2026-10-03 Alias added: GHSA-4qxg-56mj-c47p
References
More Microsoft Office vulnerabilities
- TI-2023-09240 Microsoft Outlook Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2019-01013 A remote code execution vulnerability exists in Microsoft Excel software when the… KEVCVSS 3.1HIGH 8.8
- TI-2019-00335 Command injection in Microsoft Office KEVCVSS 3.1HIGH 8.8
- TI-2018-00739 Out-of-bounds write in Microsoft Equation Editor KEVCVSS 3.1HIGH 8.8
- TI-2015-02130 Microsoft PowerPoint 2007 SP3, Word 2007 SP3, PowerPoint 2010 SP2, Word 2010 SP2… KEVCVSS 3.1HIGH 8.8
- TI-2015-01588 Microsoft Office 2013 SP1 and 2013 RT SP1 allows remote attackers to execute arbitrary… KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2021-27059 · CVE Program
- CVE-2021-27059 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-4qxg-56mj-c47p · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences